SSC JE Electrical 2019 with solution SET-1
 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

20Ω
40Ω
10Ω
30Ω

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SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = ωT
Pmech = (2πωT)/60
Pmech = (2πωT)
Pmech = (ωT)/60

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SSC JE Electrical 2019 with solution SET-1
 The meter constant of an energy meter will be given in:

kWh/Revolutions
Revolutions/kWh
Revolutions/kW
kW/Revolutions

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